You don't need to put 'attractive' in quotes, here. Attractiveness is a real thing; assessments of beauty strongly correlate with one another. And you're talking about an example where one group of people literally attracted other people. So there's no sense in which they weren't attractive.

IQ is pretty stable over a lifetime. It would be extraordinary for "help from others" to have a long-term influence; only diet and head injuries seem to affect IQ in a permanent way.